Archive for September 7th, 2006|Daily archive page

Nanowerk Spotlight) These days we are debating if nanoparticles in sunblock and toothpaste are safe. The ancient Greeks and Romans didn’t know about such things – but they already used nanotechnology in their cosmetics. A group of researchers in France showed that lead-based chemistry, which was initiated in Egypt more than 4000 years ago, could result in the synthesis of lead sulfide (PbS, galena) nanocrystals. With a diameter of about 5 nm, the appearance of these crystals is quite similar to PbS quantum dots synthesized by modern materials science techniques.Link to Source

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The cashew nut will soon have a bigger role to play – in nanotechnology…Cashew nut shell liquid (CNSL) — the fluid inside the shell casing of the cashew contains anacardic acids which are useful in preparing magnetic ‘nanofluid,’Original source and text